Trade Seal
Trade-Seals are a one piece self adhesive waterproofing collar used to seal penetrations in the building envelope. They are available in 10 sizes from 8mm - 220mm. Trade-Seals are BRANZ Appraised & can be used on all BRANZ Appraised building wraps & RAB systems in the New Zealand market.
They should be considered as a secondary flashing system & can be exposed to UV for up to 90 days. Trade-Seals are also a component of the Tekton Weatherization System BRANZ # 621. They are available from all good building, plumbing and electrical merchants. Please read the installation instructions carefully before installing.
Trade-seals are available in the following sizes
- 8mm - 12mm
- 15mm - 22mm
- 25mm - 32mm
- 42mm - 55mm
- 50mm - 70mm
- 75mm - 90mm
- 100mm - 110mm
- 125mm - 135mm
- 150mm - 165mm
- 200mm - 220mm
Features & Benefits
- BRANZ Appraised for flexible and rigid wall underlays
- 90 Day UV exposure rating
- Can be installed on the inside (retrofit installation)
- No adhesive required
- One component secondary flashing system
Frequently Asked Questions
What is Trade Seal used for?
Trade Seal is a one-piece self-adhesive waterproofing collar used to seal pipe and service penetrations through walls.
What sizes does Trade Seal come in?
Ten sizes from 8mm up to 220mm.
Can Trade Seal be installed as a retrofit?
Yes. It can be installed from the inside, which makes it suitable for retrofit work as well as new builds.
What is the maximum temperature Trade Seal can withstand?
Trade Seal can withstand temperatures up to 100°C. The spec sheet gives a permanent temperature resistance of -20°C to +100°C.
Does Trade Seal need separate adhesive?
No. It's a one-component secondary flashing system with no adhesive required.
Does Trade Seal work with both flexible and rigid wall underlays?
Trade Seal works with most wall underlays but please check with substrate supplier before use.
How long can Trade Seal be exposed before the wall is closed in?
It carries a 90-day UV exposure rating.




